Ramadhan 1447 H will be set for Thursday, February 19 2026

ViralTerkini.idBogor – The Bandung Meteorology, Climatology and Geophysics Agency (BMKG) is observing the new moon to determine 1 Ramadhan 1447 Hijriah. Tuesday, February 17 2026 at the Albiruni Observarium, Bandung Islamic University (UNISBA).

Head of the BMKG Bandung Geophysics Station, Teguh Rahayu, said that based on weather forecasts, it is possible that the new moon will not be seen on February 17 2026. However, there is a possibility that it will be seen on February 18 2026.

“Based on BMKG’s new moon record data, astronomical science and weather forecast data, the new moon at the start of Ramadhan 1447 Hijriah in Bandung City will not be observed on February 17 2026. However, it has the potential to be observed on February 18 2026,” he said.

Referring to BMKG weather forecast data, according to Rahayu, on Tuesday 17 February 2026, the observation location at the UNISBA Campus in Bandung City has the potential for light rain between 13-19 WIB. Meanwhile, the BMKG’s prediction on Wednesday, February 18 2026 at the new moon monitoring site in Lembang is predicted to be cloudy between 13-19 WIB.

This crescent moon observation uses a computerized telescope combined with information technology. When the observation is carried out, the brightness of the hilal light will be recorded by the detector on the telescope which automatically follows changes in the position of the moon on the western horizon. Through this mechanism, observation data will be directly sent to the server at the central BMKG, and disseminated online via the website

Meanwhile, the Islamic organization Muhammadiyah has determined that 1 Ramadhan 1447 Hijriah will fall on February 18 2026. Through its official website, Muhammadiyah provides an explanation regarding this determination.

“The stipulation of the start of Ramadhan 1447 H which falls on Wednesday, February 18 2026, has sparked critical discussions in society, especially regarding the use of the position of the new moon in the Alaska region as a reference. A fundamental question arises which represents public anxiety, how is it possible for Muslims in Indonesia to start fasting in the morning while the parameters of the new moon in the reference location (Alaska) will only be fulfilled dozens of hours later? This objection naturally occurs due to the clash between the logic of the local calendar which is based on direct visibility and the logic of the global calendar which is based on direct visibility. systemic.” Muhammadiyah wrote as quoted from its official website, Tuesday (17/2/2026). (bd/ma)